How Long Does New Flooring Need to Settle Before Fitting?

Most flooring materials need to sit unopened (or loosely stacked, depending on the product) in the room they'll be fitted in for a period before installation, so the material adjusts to that room's specific temperature and humidity. Skipping this "acclimatisation" step is one of the most common causes of gaps, lifting, or warping in the weeks and months after fitting.

Why acclimatisation matters

Wood-based flooring products — solid wood, engineered wood, and to a lesser extent laminate — naturally expand and contract with changes in humidity and temperature. If flooring is fitted straight from a cold warehouse or delivery van into a warm, dry living room, it will continue adjusting to its new environment after it's already been fixed or locked in place, which is exactly when problems like gapping or buckling tend to show up.

Typical acclimatisation times by material

• Laminate: commonly at least 48 hours in the room, unopened in its packaging, at normal room temperature.
• Engineered wood: commonly 48-72 hours, though some manufacturers recommend longer — always check the specific product's instructions.
• Solid wood: often needs considerably longer, sometimes a week or more, since solid timber moves more than engineered products.
• LVT: generally needs less acclimatisation than wood-based products, but manufacturers still often recommend at least 24-48 hours at room temperature before fitting.
• Carpet: acclimatisation is less critical than for rigid flooring types, though it's still sensible to let it reach room temperature before fitting, particularly in cold weather.

These are general guides — always follow the specific manufacturer's stated acclimatisation period for the exact product you've bought, since it varies by material composition and can differ between brands.

What "normal conditions" means

Acclimatisation assumes the room is at the temperature and humidity it will normally be kept at once you're living in it — heating running as usual, not a building site with the heating off and windows open. Acclimatising flooring in a cold, damp, unfinished room and then fitting it before the heating is properly running defeats the purpose, since the room's conditions will change again once normal living resumes.

Common mistakes

The most common mistake is treating acclimatisation as optional to save time on a project, particularly under pressure to finish quickly. The second is acclimatising the flooring in a hallway or garage rather than the actual room it's being fitted in, since different rooms can have meaningfully different humidity levels, especially kitchens and bathrooms. Proper subfloor preparation alongside correct acclimatisation gives new flooring the best chance of staying flat and gap-free for years.

What can go wrong if you rush it

Beyond the gaps and lifting already mentioned, fitting flooring before it's acclimatised can also cause boards to bow or cup slightly as they continue adjusting after being locked or fixed in place, which is far harder to correct after the fact than simply waiting the recommended period upfront. In more severe cases, an under-acclimatised solid wood floor can develop noticeable, uneven movement across the room that's expensive to put right once it's already down and finished.

How to store flooring properly while it acclimatises

Flooring should generally be left in its original packaging, laid flat (not standing on end) in the room it will be fitted in, ideally raised slightly off a cold concrete floor on battens rather than placed directly on it. Avoid stacking anything heavy on top that could restrict air movement around the packs, and keep the room at the same heating and humidity conditions you intend to live in once the floor is fitted, not a stripped-back building-site environment.

Does the time of year affect acclimatisation?

Yes — flooring delivered and stored during a particularly cold, damp winter, or a very hot, dry summer, may need longer than the manufacturer's standard guidance to reach a stable equilibrium with normal indoor conditions, since it's starting from a more extreme starting point. If in doubt, erring on the side of a longer acclimatisation period costs little beyond a few extra days' wait, whereas fitting too early risks problems that are far more costly to put right.

If your flooring is being delivered well ahead of the fitting date, it's worth checking it's being stored in suitable conditions at the point of delivery too — a garage or unheated room over a British winter isn't a neutral storage environment, and flooring that's sat somewhere cold and possibly damp for weeks may need its acclimatisation period extended once it's finally moved into the actual room.

When in doubt about the correct acclimatisation period for your specific product, contacting the manufacturer directly is more reliable than relying on general guidance found online, since formulations and recommendations genuinely differ between brands and product ranges.